While Britney Spears and boyfriend Jason Trawick were in Vegas for the Billboard Awards, her ex Kevin Federline and pregnant girlfriend Victoria Prince were rooting on Sean Preston at his baseball game in Calabasas.

We couldn't help but notice the growing belly ... and we're not talking about just Victoria. K-Fed sure is living large these days!

Check out adorable Sean Preston dressed in his baseball uniform ... after the jump.

Estella Warren, who starred in The Planet of the Apes remake and Kangaroo Jack, was arrested at 12:05am this morning for driving under the influence.

The 40-year-old blonde model/actress slammed into several parked cars in her Prius, according to officers at the scene. After the accident, Warren took off in her car, but was caught and arrested moments later.

Once in custody, we're told Warren was "so drunk," she kicked the arresting officer. The actress also reportedly was able to get out of her handcuffs while being booked, and managed to escape. However, she didn't get far.

Warren is being booked for assault, DUI, hit and run ... as well as felony escape.

Her bail has been set for $100,000.

Estella Warren, who starred in The Planet of the Apes remake and Kangaroo Jack, was arrested at 12:05am this morning for driving under the influence.

The 40-year-old blonde model/actress slammed into several parked cars in her Prius, according to officers at the scene. After the accident, Warren took off in her car, but was caught and arrested moments later.

Once in custody, we're told Warren was "so drunk," she kicked the arresting officer. The actress also reportedly was able to get out of her handcuffs while being booked, and managed to escape. However, she didn't get far.

Warren is being booked for assault, DUI, hit and run ... as well as felony escape.

Her bail has been set for $100,000.

While President Obama and First Lady Michelle Obama are in London, the Commander in Chief and his wife stopped by Buckingham Palace to visit with newlyweds Prince William and Kate Middleton.

The two power couples enjoyed a private 10-minute meeting at the Palace ... including a visit with Queen Elizabeth. The Obamas then watched a 41-gun salute by the Royal Artillery.

Although the President and First Lady were not officially invited to the royal wedding, looks as though there are no hard feelings.

See who else the presidential couple visited with ... after the jump.

While President Obama and First Lady Michelle Obama are in London, the Commander in Chief and his wife stopped by Buckingham Palace to visit with newlyweds Prince William and Kate Middleton.

The two power couples enjoyed a private 10-minute meeting at the Palace ... including a visit with Queen Elizabeth. The Obamas then watched a 41-gun salute by the Royal Artillery.

Although the President and First Lady were not officially invited to the royal wedding, looks as though there are no hard feelings.

See who else the presidential couple visited with ... after the jump.

This pair is too cute!

Carrying the hottest neon Hermes Kelly we've ever seen (to match the green stripe in her hair), Avril Levigne took a leisurely stroll in LA on Monday afternoon with hottie BF Brody Jenner, and the couple looked so happy and in love. Aww!

The pair have been together over a year, and are so head over heels for each other, they have recently been sending mushy Tweets for the world to see, including hers, "I love your eyelashes," and his, "kisses."

Now that Avril's divorced and free, and they both have tattoos of each other's names, what's next?

This pair is too cute!

Carrying the hottest neon Hermes Kelly we've ever seen (to match the green stripe in her hair), Avril Levigne took a leisurely stroll in LA on Monday afternoon with hottie BF Brody Jenner, and the couple looked so happy and in love. Aww!

The pair have been together over a year, and are so head over heels for each other, they have recently been sending mushy Tweets for the world to see, including hers, "I love your eyelashes," and his, "kisses."

Now that Avril's divorced and free, and they both have tattoos of each other's names, what's next?

Katie Holmes struck a few sexy poses for the photographers as she made her way to the 56th annual Drama Desk awards at Hammerstein Ballroom in NYC Monday night.

Holmes looked ravishing in electric purple as she glided into the event. The actress wasn't nominated, but she was there to support her fellow thespians.

The Drama Desk was created to "explore key issues of the theater community" and actually helped launch the careers of many successful actors and playwrights. Dustin Hoffman even signed onto The Graduate just days after receiving his 1966 DD award.

Will Katie consider settling in NYC and going back to theater?

Find out how Mrs. Tom Cruise arrived at the Drama Desk awards, after the jump ...